Simon Mark — SEC Form 4 filings
SEC reporting owner CIK 1400717. 5 Form 4 filings on record with FilingPulse; latest filed 2026-06-10.
Transaction summary — filings shown
Covers all 5 filings on record, filed 2024-06-04 to 2026-06-10. Counts and totals are arithmetic on values as filed — descriptive data, not a recommendation.
- Open-market purchases (code P, non-derivative): 1 leg across 1 filing — 11,061 shares, $25,261 total (shares × price as filed).
- Open-market sales (code S, non-derivative): none reported.
- Other reported legs (grants, option exercises, tax withholding, gifts, derivative-security transactions, …): 11.
- Largest priced transaction: purchase of 11,061 shares @ $2.28 ($25,261) in Cabaletta Bio, Inc., filed 2026-01-21.
By issuer — same filings
Open-market purchase/sale legs on non-derivative securities, grouped by issuer. Role is as filed on the newest filing for that issuer. Dollar totals cover priced legs only (shares × price as filed). Ordered by priced transaction value, largest first.
| Issuer | Role (as filed) | Filings | Purchases (P) | Sales (S) | Other legs |
|---|---|---|---|---|---|
| Cabaletta Bio, Inc. (CABA) | Director | 5 | 1 leg · 11,061 sh · $25,261 | — | 11 |
Form 4 filings — Simon Mark
| Filed | Form | Issuer | Reported transactions | Source |
|---|---|---|---|---|
| 2026-06-10 | 4 | Cabaletta Bio, Inc. (CABA) | Grant/award (A): 22,000 (derivative) @ $0 | EDGAR |
| 2026-01-21 | 4 | Cabaletta Bio, Inc. (CABA) | Purchase (P): 11,061 @ $2.28 | EDGAR |
| 2025-06-09 | 4 | Cabaletta Bio, Inc. (CABA) | Grant/award (A): 22,000 (derivative) @ $0 | EDGAR |
| 2025-05-19 | 4 | Cabaletta Bio, Inc. (CABA) | Disposition to issuer (D): 18,460 (derivative) @ $0 · Grant/award (A): 18,460 (derivative) @ $0 · Disposition to issuer (D): 22,000 (derivative) @ $0 · Grant/award (A): 22,000 (derivative) @ $0 · Disposition to issuer (D): 22,000 (derivative) @ $0 · Grant/award (A): 22,000 (derivative) @ $0 · +2 more | EDGAR |
| 2024-06-04 | 4 | Cabaletta Bio, Inc. (CABA) | Grant/award (A): 22,000 (derivative) @ $0 | EDGAR |
FilingPulse's Form 4 archive currently extends back to 2024-01-11 and is expanding backward through EDGAR history — earlier filings by this insider may not be indexed yet. Names and roles are shown as filed.
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